Sharp razor blades from Feather, Japan. Fits all traditional double edge razors (Safety razors). These sharp double edge blades are made from high class stainless steel, which has been surface treated with platinum for optimal comfort. A double edge razor blade lasts 3-5 times as long as the popular 3-blade systems. You can easily get 6-8 shaves with one blades!. Feather Double Edge Razor Blades comes in 10-pack.